About: http://webisa.webdatacommons.org/272715388

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	These columns will reference numerous SQL scripts, source code, and other files, which are all available for download from the book's O'Reilly Web site.
http://www.w3.org/ns/prov#wasQuotedFrom	oreilly.com